Pneumatic-despatch carrier.



No. 860,947. PATENTED JULY 23, 1907. J. W. UPP & w. 0. WAKEFIELD.

PNEUMATIC DESPATOH CARRIER.

v APPLICATION FILED APB.5, 1907.

INVENTORS:

6 mung WITNESSES:

rrnrrnn snares erment. enrich.

JOHN W. UPP AND WILLIAM O. WAKEFIELD, OF SGHENEGTADY, NEW YORK; SAID WAKEFIELD ASSIGNQ TO SAlDi UPI.

To all whom it may concern:

Be it known that We, Ions W. UPP and WILLIAM O. WAKEFIELD, citizens of the United States, residing at and whose post-office address is Schenectady, county of Schenectady, State of New York, have invented ccrtain new and useful Improvements in Pneumatic-Despatch Carriers; and We do hereby declare the following to be a full, clear, and exact description of the invention. such as willv enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to certain new and useful im provements in pneumatic despatch carriers, and is designed to provide a structure combining strength, lightness, and flexibility, with economy of manufacture and durability during long continued use.

In the accompanying drawing, Figure 1 represents a longitudinal central section taken on a plane indicated by the line l1 of Fig. 3, of one end of a pneumatic despatch carrier embodying our invention; Fig. 2 represents an' end elevation thereof, on a smaller scale; Fig. 3 represents a cross-section, also on a smaller scale, taken on a plane indicated by the line 3-3 of Fig. 1; Fig. 4 represents a sectional elevation of the means for locking and releasing the securing catch for the hinged end cover of the carrier; Fig. 5 represents, in elevation, the cam element of the securing catch; Fig. 6 represents, on a still smaller scale, an exteriorview of the complete'carrier, the location of the flexible stifien'ers for the main body portion being indicated by dotted lines; and Fig. Z representsaview of the main body portion with a portion of its fabric constituent partially unrolled, to disclose one of the flexible stiffener-s.

Similar letters of reference indicate similar parts throughout the several views.

Referring to the drawing, it will be noted that the main body portion of the carrier has attached to it at its forward end the customary piston head of the usual leather disks a and leather sleeve b (see Fig. 6). At its rear end it is provided with a leather sleeve 0 cemented to a strip of fabric j which is riveted .at d, and a second set of single-headed rivets e engaging corresponding apertures in the sleeve reinforces the anchoring rivets d, while permitting a certain degree of freedom of adjustment of the sleeve in its passage through the pneumatic main.

The sleeve has a rearward flare as shown, and between it and the main body portion of the carrier extends the sheath q of metal. ."tn inner short cylinder h, of metal, fits within the main body portion and is cemented or otherwise attached thereto, and the strap Specification of Lettersgi-"atent.

Application filed April 5.1907. sash No. 386.467.

Patented July 23, $367.

' hinge dot the end coveris riveted in place between the two mctalsurfaccs. thermore, with a recess j and shoulder is for engagement with cam l of the securing catch.

The securing catch is provided with a squared end To whereby it is fixed to the operating handle at, and the said handle is normally locked in position by means of a locking. button p, passing through an opening in the hinged cover A. The locking button is mounted upon the free end of a fiat spring q, iulcrumed at r and having a push-pin s, which also extends freely through an opening in the hinged cover, so that, on pushing the pin 8 inwardly, the button 7) will be withdrawn from the operating handle 71., thereby releasing said handle and permitting it to be turned to release the securing catch of the hinged cover, when it is desired to open the can rier in order to load it or to remove its contents.

In order to protect, and afford a secure anchorage for the hinge-pin t of the cover, and to stiffen and strengthen the cover and prevent it from rocking back too far on its hinge when opened, there are provided the stout leather The cylinder h is provided,

segments B, secured in place by the rivets 11. These shock if carrier becomes lodged in line or is overtaken by a carrier, which may immediately follow it. It should be noted' that these leather buffers extend practically to the edge of the cover, so that shock is transmitted through whole length of carrier which has been reinforced by stiffening strips and cylinder h which rests upon them.

' The main body portion of the carrier constitutes the principal feature of novelty and advantage in the new construction. It is niade up of duck or like fabric '0 (see Fig. 7) saturated more or less with an adhesive cement (preferably waterprooi) and wrapped about a forming mandrel to the desired thickness. During.

the formation of the said main body portion, we insert, preferably at equally-spaced intervalsfa series of flexible flat steel springs 11;, or their equivalents. The main function of these springs is to impart strength to the structure, especially against the buckling or upsetting strains to which the orrrier is subjected when it emerges from the pneumatic main at the delivery station or is struck from behind. They alsot'rpermit the carrier to be made lighter for the same carrying capacity,

. and to maintain normally its cylindrical shape, while at the same time giving it a limited resilient flexibility thereby permitting it to conform itself during transit to any slight irregularities or bends in the pneumatic main. After the main body portion has been formed tiolris made up of layers of fabric united to form a tube and having a resilient flexible reinforcement, substantially as described.

2. A pneumatic despatch carrier, whose main body p012 tion is made up of layers of fabric united to form a tube and having resilient flexible reinforcement consisting of a series of lint spring strips, substantially as described.

3. A pneumatic despatchcarrier, whose main body portion is made up of layers of fabric united to form a tubev und having a resilient flexible reinforcement consisting of a series of flat spring strips, said strips being arranged longitudinally and spaced'apart, substantially as described.

4. A pneumatic despatch carrier, whose main body portion is made up 'of layers of fabric cemented together to form a tube and having interposed between adjacent layers and enwrnpped therein a series of longitudinal fiat steel springs, substantially as described.

5. A pneumatic despalwch' carrier, having a hinged end cover, a securing catch therefor consisting of a cam provided with an operating handlqend a locking, and releasing button engaging the operating handle, substantially as described. 6. A pneumatic despatch carrier, having a hinged end cover, a securing catch therefor consisting of a cum pro,- vided with an operating handle, and a locking and releas ing button engaging the operating handle, said button being mounted upon a nut spring provided with a pushpin, substantially as described.

7. A pneumatic despatch carrier, having a hinged'end cover, strengthened and stiffened by a number'ofJeather segments riveted thereto, substantially "as described.

In witness whereof, we have hereunto set our hands this 21st day of March, 1907. g

' JOHN W. UPI.

- WILLIAM 0. ,WAKEFIELD. Witnesses: BENJAMIN B. HULL,

Minimum E. Woonnny; 

